Avaya Definity TN573B Switch-Node Interface (Refurbished)

Avaya Definity TN573B Switch-Node Interface (Refurbished)Avaya Definity TN573B Switch Node Interface for r. More Information Routes circuit, packet, and control messages Installed in a SN carrier in a CSS that terminates a fiber optic link from a SNI in another SN carrier, and EI in a PPN, and an EI in an EPN One TN573B is used per PN and supports the TN574 DS1 converter circuit pack TN573B and higher provides an interface to the single mode fiber optic transceiver and supports the TN1654 and TN574 DS1

Prevents outgoing calls on individual phones

2-Port PC Card

and Flash 4 for up to 40 users

these modules must be ordered with a plastic "clamshell" housing for installation in the Merlin Legend Control Unit

Centrex Plus

The DADM 3120 adds 20 feature buttons to any of the DKT3000 Series phones

Can handle up to 2 door phone and 2 door strikes

2-line x 16 character backlit display

and is the only model that can work with phone company voicemail

You can create up to 99 announcements shared among all Automated Attendants

The Panasonic DBS VB-44220 Phone is a business telephone that has an enhanced design and functionality

25 connectivity is not required